Baseline C  : cc  -arch ev7 -fast +CFB ONESTEP 
          C++: cxx -arch ev7 -O2        ONESTEP 
 
 Peak: 
   The following use: -g3 -arch ev7 ONESTEP
       175.vpr 181.mcf 197.parser 253.perlbmk

   The following use: -g3 -arch ev6 ONESTEP
       164.gzip 176.gcc 254.gap 255.vortex 256.bzip2 300.twolf

   Individual benchmark tuning:
      164.gzip: -fast -O4 -non_shared +CFB 
       175.vpr: -fast -O4 -assume restricted_pointers +CFB 
       176.gcc: -fast -O4 -xtaso_short -all -ldensemalloc -none
                +CFB +IFB 
       181.mcf: -fast -xtaso_short +CFB +IFB +PFB
    186.crafty: same as base
    197.parser: -fast -O4 -xtaso_short -non_shared +CFB
       252.eon: -arch ev7 -O2 -all -ldensemalloc -none 
   253.perlbmk: -fast -non_shared +CFB +IFB 
       254.gap: -fast -O4 -non_shared +CFB +IFB +PFB 
    255.vortex: -fast -non_shared +CFB +IFB
     256.bzip2: -fast -O4 -non_shared +CFB 
     300.twolf: -fast -O4 
                -ldensemalloc -non_shared +CFB +IFB

 Most benchmarks are built using one or more types of 
 profile-driven feedback.  The types used are designated
 by abbreviations in the notes:

 +CFB: Code generation is optimized by the compiler, using 
       feedback from a training run.  These commands are
       done before the first compile (in phase "fdo_pre0"):

            mkdir /tmp/pp
            rm -f /tmp/pp/${baseexe}*

       and these flags are added to the first and second compiles:

            PASS1_CFLAGS = -prof_gen_noopt -prof_dir /tmp/pp
            PASS2_CFLAGS = -prof_use       -prof_dir /tmp/pp
 
      (Peak builds use /tmp/pp above; base builds use /tmp/pb.)

 +IFB: Icache usage is improved by the post-link-time optimizer 
       Spike, using feedback from a training run.  These commands
       are used (in phase "fdo_postN"):  

            mv ${baseexe} oldexe
            spike oldexe -feedback oldexe -o ${baseexe}

 +PFB: Prefetches are improved by the post-link-time optimizer 
       Spike, using feedback from a training run.  These
       commands are used (in phase "fdo_post_makeN"):

            rm -f *Counts*
            mv ${baseexe} oldexe
            pixie -stats dstride oldexe 1>pixie.out 2>pixie.err
            mv oldexe.pixie ${baseexe}

       A training run is carried out (in phase "fdo_runN"), and 
       then this command (in phase "fdo_postN"):

            spike oldexe -fb oldexe -stride_prefetch -o ${baseexe}

 When Spike is used for both Icache and Prefetch improvements, 
 only one spike command is actually issued, with the Icache 
 options followed by the Prefetch options.
 
 Portability: gcc: -Dalloca=__builtin_alloca; crafty: -DALPHA
 perlbmk: -DSPEC_CPU2000_DUNIX; vortex: -DSPEC_CPU2000_LP64
 gap: -DSYS_HAS_CALLOC_PROTO -DSYS_IS_BSD -DSYS_HAS_IOCTL_PROTO 
      -DSPEC_CPU2000_LP64
  
 Information on UNIX V5.1B Patches can be found at
 http://ftp1.service.digital.com/public/unix/v5.1b/
  
 
 vm:
         vm_bigpg_enabled = 1
         vm_bigpg_thresh=16
         vm_swap_eager = 0

 proc:
         max_per_proc_address_space = 0x40000000000
         max_per_proc_data_size = 0x40000000000
         max_per_proc_stack_size = 0x40000000000
         max_proc_per_user = 2048
         max_threads_per_user = 0
         maxusers = 16384
         per_proc_address_space = 0x40000000000
         per_proc_data_size = 0x40000000000
         per_proc_stack_size = 0x40000000000


 In the ES47, there are two cpus per shelf.  Each cpu has
 its own 4GB of memory.  Neither of the cpus can be 
 physically removed.  For 1 cpu results measured on a 2 cpu
 system, one cpu was turned off at boot time using the
 /etc/sysconfigtab setting "cpu_enabled_mask=0".  The cpu's
 4GB of memory was also physically removed.